A gigantic map of all the cool plaques in the world. A project of 99% Invisible.

Marina West

    Harry Ells School

      Richmond Public Library A.D. 1923

        Clam Lake Canal

        in 1873 the Clam Lake canal was constructed between Big and Little Clam lakes present-day Lake Mitchell and Cadillac.  Lumbering was the major industry in the Clam Lake area and saw mill owners...

        in 1873 the Clam Lake canal was constructed between Big and Little Clam lakes present-day Lake Mitchell and Cadillac.  Lumbering was the major industry in the Clam Lake area and saw mill...

        • michigan
        • lumbering

        Who Knew Above All Things The Magic of Books

        • susskind

        Allison Van Norman

          North Branch Library

            McAdam Railway Station

            Submitted by @bthubbard

            Submitted by @bthubbard

              Don Messer

              Submitted by @bthubbard

              Submitted by @bthubbard

              • fiddler
              • messer

              The Linden Oak

              THE LINDEN OAK The oldest White Oak tree in Montgomery County was saved from destruction by the Metro construction in 1973 by Idamae Garrott. A great champion of the people and of the environment,...

              THE LINDEN OAK The oldest White Oak tree in Montgomery County was saved from destruction by the Metro construction in 1973 by Idamae Garrott. A great champion of the people and of the environment,...

              • linden oak
              • imageryan
              • montgomery
              • maryland

              Cincinnati Union Terminal Time Capsule

              Submitted by @kevl42

              Submitted by @kevl42

                Cincinnati Union Terminal

                Submitted by @kevl42

                Submitted by @kevl42

                  Tomb of an Unknown Soldier

                  Submitted by @DaraGreen

                  Submitted by @DaraGreen

                  • civil war
                  • signal knob

                  Over the Rhine

                  [Location approximate]Submitted by @kevl42

                  [Location approximate]Submitted by @kevl42

                  • ohio
                  • rhine
                  • canal

                  Anne Frank's Tree

                  Submitted by @joepevans

                  Submitted by @joepevans

                  • wwii
                  • holocaust
                  • anne frank

                  Hotel Whitcomb Temporary City Hall 1912 to 1915

                    Lincoln, SF City Hall

                      Darwin studies geology

                      The location at which Charles Darwin first used a clinometer to measure the tilt of geological strata.Submitted by Alistair Wylie

                      The location at which Charles Darwin first used a clinometer to measure the tilt of geological strata.Submitted by Alistair Wylie

                      • charles darwin
                      • geology
                      • clinometer
                      • adam sedgwick

                      Duck Lane, Builth Wells

                      Origins of Duck Lane, Builth WellsSubmitted by: Alistair Wylie

                      Origins of Duck Lane, Builth WellsSubmitted by: Alistair Wylie

                      • ducks
                      • builth wells

                      Newton County, CSA

                      Supply and military center in the Civil War. Target area for Federals trying to move up the Sabine or across Louisiana and take Texas. Confederates built breastworks and maintained arsenal at...

                      Supply and military center in the Civil War. Target area for Federals trying to move up the Sabine or across Louisiana and take Texas. Confederates built breastworks and maintained arsenal at...

                      • texas
                      • civil war